Prediction of critical heat flux on natural convective boiling in vertical short-thick tube submerged in saturated liquid

✍ Scribed by Zhen-Hua Liu

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 556 KB
• Volume: 32
• Category: Article
• ISSN: 1099-2871
• DOI: 10.1002/htj.10103

✦ Synopsis

Abstract

An experimental and semitheoretical study was carried out for the critical heat flux (CHF) on natural convective boiling in uniformly heated vertical short‐thick tubes and vertical short‐thick annular tubes submerged in saturated liquids. By adapting a mathematical dealing method based on the theoretical formulas of CHF of both the natural convective boiling in vertical narrow‐long tubes and the pool boiling, a simple semitheoretical formula was derived. The new formula expands the prediction range of CHF from pool boiling of vertical plates to very long vertical tubes and agrees well with the data of the tubes, annular tubes submerged in water or other liquids under various pressure conditions. © 2003 Wiley Periodicals, Inc. Heat Trans Asian Res, 32(5): 402–410, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/htj.10103